it'd be handy to always have all books available as sets in the lower left set list manager.... When selected, the lower right set list manager populates with all the titles. Then one could double-tap-add single songs up into the workspace to create a set from an alphabetical listing. If every book was there by default (in addition to whatever sets one creates) then I wouldn't have to create the full-book-setlist as a source. The program "knows" all the books by index. After all songs are in the workspace, the Add-results could throw them into an existing set or new set.